A group of people was standing outside when at least one person opened fire at them, striking two people, Gaines said.

Bullets struck the 32-year-old woman in struck in the neck and the 42-year-old man in the stomach, police said. Both people were taken to Mount Sinai Hospital, where the woman was listed in critical condition and the man in serious condition.

At the crime scene after the shooting, police officers with flashlights searched an alley running west from Ridgeway and an adjacent parking lot. Just south of the crime scene, a red "X" sign hung on the front of a two-story brick building with several missing window panes, marking the building as vacant.

The yellow tape surrounding the crime scene extended to the east side Ridgeway, stopping short of a playground next to a school there.

In an earlier shooting, a 17-year-old boy was shot about 11:45 p.m. as he stood in the 6600 block of South Paulina Street, in the West Englewood neighborhood, police said.

The boy was struck in the foot and taken to St. Bernard Hospital and Health Care Center, where he was listed in good condition.

Tuesday evening, a 20-year-old man was shot in the groin about 5:35 p.m. in the 1600 block of South Komensky Avenue, News Affairs Officer Daniel O'Brien said. The man was taken to Mount Sinai Hospital, where his condition was stabilized.